Open Access This article is distributed under the terms of the Creative Commons Attribution Noncommercial License which permits any noncommercial use, distribution, and reproduction in any medium, provided the source is credited. DOI 10.3109/17453670903039551 In the past few years hip spacers have become popular in the treatment of infected total hip arthroplasties (THAs), with reported infecti...

Kyphoplasty provides a minimal-invasive surgical technique for the cement augmentation of vertebral bodies following osteoprotic compression fractures or malignant processes. Kyphoplasty has been developed as an advancement of vertebroplasty. Both procedures feature high-success rates in terms of reliable and lasting reduction of pain. Advantages of kyphoplasty over vertebroplasty are to be see...

Summary It is shown how the flow from pumping cement through an open-ended pipe very quickly changes direction and flows upward. This rapid change in indicates that a diverter tool, which leads slurry perpendicularly out of closed-ended pipe, does not have any function. The placement balanced plug feasible. However, high-density fluid above lighter stable. phenomenon known as Rayleigh-Taylor in...

This paper presents a series of experiments focused on the displacement viscoplastic fluids by various Newtonian and non-Newtonian from long horizontal, eccentric annulus. The flow regimes range high Reynolds number laminar through to fully turbulent. These represent primary cementing operation in horizontal well. main objective our is gain insight into role regime fluid-fluid flows relevance c...